Preliminary geologic map of the Uncas 7.5' quadrangle Clallam and Jefferson Counties, Washington

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. Where did the data come from?
  2. What changes have been made?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

Title:

Preliminary geologic map of the Uncas 7.5' quadrangle Clallam and Jefferson Counties, Washington

Abstract:

These are the digital files used to create the map in USGS OFR 99-421. The 1:24,000 scale map shows the bedrock and surficial deposts of the Uncas 7.5' quadrangle, Clallam and Jefferson counties, Washington. Digital files include ARC/Info coverages in export format of geology, and strike and dip information.

Supplemental_Information:

USGS OFR 99-421 digital data consists of the following files.

ARC/Info files:

uncas.aml

uncasgeo6.e00

uncassandd.e00

1. How should this data set be cited?

   Haeussler, Peter J., Yount, Jim, and Wells, Ray, 1999, Preliminary geologic map of the Uncas 7.5' quadrangle Clallam and Jefferson Counties, Washington: U.S. Geological Survey Open-File Report OFR 99-421.

   Online Links:

   • <http://geopubs.wr.usgs.gov/open-file/of99-421>

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -123.0

   East_Bounding_Coordinate: -122.875

   North_Bounding_Coordinate: 48.0

   South_Bounding_Coordinate: 47.875

3. What does it look like?

   of99-421.pdf (PDF - Adobe portable document format)

   OFR99-421 with geologic map, text, description of map units, correlation of map units, and references.

4. Does the data set describe conditions during a particular time period?

   Calendar_Date: 1999

   Currentness_Reference: publication date

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: vector digital data

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?

      This is a Vector data set.

   2. What coordinate system is used to represent geographic features?

      Grid_Coordinate_System_Name: Universal Transverse Mercator

      Universal_Transverse_Mercator:

      UTM_Zone_Number: 10

      Transverse_Mercator:

      Scale_Factor_at_Central_Meridian: 0.9996

      Longitude_of_Central_Meridian: -123.0

      Latitude_of_Projection_Origin: 0.0

      False_Easting: 500000

      False_Northing: 0.0

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 100
      Ordinates (y-coordinates) are specified to the nearest 100
      Planar coordinates are specified in meters

7. How does the data set describe geographic features?

   arcs

   Characteristic of arcs in the aat, arc attribute table, of the geology coverage. (Source: USGS OFR 99-421)

   arc-code

   Arc-code is a positive integer value (3 3 I) item in the arc attribute table. Values range from 1-99. Arc-code describes the type of line feature. A lookup table, uncasgeo6.llt, contains brief descriptions of the arc-code. (Source: USGS OFR 99-421)

   Value	Definition
   1	Stratigraphic contact, certain location
   2	Stratigraphic contact, approximate location
   3	Stratigraphic contact, inferred location
   4	Normal fault, certain location
   5	Normal fault, approximate location
   6	Normal fault, inferred location
   7	Shore line or riverbank
   30	Fold axis, certain location. If arc-para1 = 21 then arc is syncline; if arc-para1 = 24 then anticline. Arc-para2 = 1 denotes arc to show cartographic arrows
   31	Fold axis, approximate location. If arc-para1 = 22 then arc is syncline; if arc-para1 = 25 then anticline. Arc-para2 = 1 denotes arc to show cartographic arrows
   36	Reverse fault, certain location
   37	Reverse fault, approximate location
   51	Concealed contact
   52	Concealed fault or fold axis. If arc-para1 = 0 then arc is a fault; if arc-para1 = 22 then syncline, approx. location; if arc-para1 = 25 then anticline, approx. location
   72	Fault showing relative horizontal movement, approximate location
   87	Right lateral fault, certain location
   88	Right lateral fault, approximate location
   98	Arrows used for cartography
   99	Bounding line of coverage

   polygons

   Characteristic of the polygon features are coded in the pat, polygon attribute table. The pat contains the following items: CLASS (4 5 B) and UNIT (geologic unit label). (Source: USGS OFR 99-421)

   Class

   Class is a positive integer value (4 5 B) item in the polygon attribute table. Values range from 0-34. A lookup table, uncasgeo6.lut, contains class, (unit)label, and color symbol of each geologic unit. See OFR 99-421 for full description of the the geologic units. (Source: USGS OFR 99-421)

   Value	Definition
   0	water
   1	af - Artificial fill (Holocene)
   2	Qb - Beach deposits (Holocene)
   3	Qf - Alluvial fan deposits (Holocene)
   4	Qal - Alluvium (Holocene)
   5	Qw - Wetland deposits (Holocene and late Pleistocene)
   6	Qls - Landslide deposits (Holocene and late Pleistocene)
   9	Qvrf - Fine-grained recessional glaciomarine or glaciolacustrine deposits (late Pleistocene)
   10	Qvrs - Sand-dominated recessional outwash deposits (late Pleistocene)
   11	Qvrg - Gravel-dominated recessional outwash deposits (late Pleistocene)
   12	Qvt - Till (late Pleistocene)
   13	Qvas - Sand-dominated advance outwash deposits (late Pleistocene)
   14	Qvag - Gravel-dominated advance outwash deposits (late Pleistocene)
   15	Qval - Advance outwash lake deposits (late Pleistocene)
   16	Qci - Indurated colluvium (Pleistocene?)
   17	Qvv - Valley-fill glacial and glaciofluvial deposits (late Pleistocene)
   20	Tss - Sandstone of Snow Creek
   21	Tluc - Lyre Formation (middle Eocene), upper conglomerate member
   22	Tlav - Lyre Formation (middle Eocene), andesite tuff and breccia
   23	Tllc - Lyre Formation (middle Eocene), lower conglomerate member
   24	Tl - Lyre Formation (middle Eocene), undifferentiated
   25	Ta - Aldwell Formation (middle Eocene)
   26	Tems - Micaceous sediments (Eocene?)
   30	Tebs - Basaltic sediments (middle Eocene)
   31	Tcf - Crescent Formation (lower and middle Eocene), basalt flows
   32	Tcb - Crescent Formation (lower and middle Eocene), basalt breccia
   33	Tcfb - Crescent Formation (lower and middle Eocene), basalt flows and breccia
   34	Tcs - Crescent Formation (lower and middle Eocene), basaltic submarine deposits

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Peter J. Haeussler
   • Jim Yount
   • Ray Wells

2. Who also contributed to the data set?

   Peter Haeussler

3. To whom should users address questions about the data?

   U.S. Geological Survey
   c/o Peter J. Haeussler
   Geologist
   4200 University Drive
   Anchorage, AK 99508-4667
   USA
   

   907-561-1181 (voice)
   pheuslr@usgs.gov
   

Digital representaion of geologic mapping facilitates the presentation and analysis of earth-science data. Digital maps may be displayed at any scale or projection, however the geologic data in this coverage is not intended for use at a scale larger that 1:24,000.

1. Where did the data come from?

2. What changes have been made?

   Date: 1999 (change 1 of 1)

   Linework was captured by hand digitizing from a stable base line drawing of scale 1:24,000. The digital linework was edited and attributed using ARC/Info. The coverage was built for polygon topology, and had labels created and attributed. For purposes of distribution, the coverage has been converted to an interchange format file using the ARC/Info export command.

1. How well have the observations been checked?

   The linework was captured by hand digitizing from field maps on mylar stable base at 1:24,000 scale. Vector and polygon attributes were obtained from field maps and compilations. The digital data has been visually checked and the geologic map has undergone technical review.

2. How accurate are the geographic locations?

   Users of this digital geospatial geologic data set should respect the intentions of the original mappers and the limitations of the map. This geologic map is intended to be used at a scale of 1:24,000; it is not intended to be used at a more detailed scale.

3. How accurate are the heights or depths?

4. Where are the gaps in the data? What is missing?

   The digital data files are the geospatial files used to create the geologic map. Files for the correlation of map units and text are not included, but are available at website <http://geopubs.wr.usgs.gov/open-file/of99-421.>

5. How consistent are the relationships among the observations, including topology?

   The geology data set, uncasgeo6, is a network coverage containing arcs and polygons. Each polygon has a coded attribute designating the mapped geologic unit. Faults and stratigraphic contacts are represented as arcs. When a fault is also a stratigraphic contact, only a single arc is present. Dangling arcs may be present (faults, dikes, etc.)

   Uncassandd is a point coverage of bedding strike and dip information. Each point is rotated to the bearing and has an item value dip.

Are there legal restrictions on access or use of the data?

Access_Constraints: None

Use_Constraints: None

1. Who distributes the data set? (Distributor 1 of 1)

   USGS Information Services
   Box 25286
   Denver Federal Center
   Denver, CO 80225-0046
   USA
   

   303-202-4200 or 1-888-ASK-USGS (voice)
   

2. What's the catalog number I need to order this data set?

   USGS OFR 99-421

3. What legal disclaimers am I supposed to read?

   Although this data has been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of thses data, software, or related materials.

4. How can I download or order the data?

   Data format:	ARCE
   Network links:	<http://geopubs.wr.usgs.gov/open-file/of99-421>

   • Cost to order the data: none

Dates:

Last modified: 18-Oct-1999

Metadata author:

U.S. Geological Survey
c/o Nora Shew
4200 University Drive
Anchorage, AK 99508-4667
USA

907-561-1181 (voice)
nshew@usgs.gov

Metadata standard:

FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)